BNC 745 User Manual

Page 11

Model 745 Digital Delay Generator.

November 2013

Under item #4 and #6 to #13 we get the following sub-menu:

T0-T8 SUB-MENU

Displayed

name

Description and settings

TRIG=

To select Trigger source

OFF= Trigger signal is inhibited

IN1= Trigger signal coming from internal frequency 1

IN2= Trigger signal coming from internal frequency 2

EXT= Trigger signal coming from the front panel (TRIG IN)

SS1= Single Shot trigger synchronous with internal freq. 1

SS2 = Single Shot trigger synchronous with internal freq. 2

SSE= Single Shot trigger synchronous with trigger input

LSS = Software Single Shot trigger (launched by item #20

or ESC button when Tx displayed)

BST = Pulse train Trigger sync. With internal freq. or

trigger input

TX RET=

To select the channel delay reference: T0 to T8

Delay=

To adjust Output pulse delay of channel T1 to T8 (1ps resolution display).

Ampl=

To adjust Output pulse amplitude of channel T1 to T8.

Width=

To adjust Output pulse width of channel TX

TX Gate

To set Channel Gate mode On or Off (available if general Gate mode is set to “Channel

Gate”) of Channel T1 to T8

RETURN

To Return to main menu

Note: T0 doesn’t allow Delay changes.

It allows the user to configure each output pulse by selecting its amplitude, width and trigger source.

Internal and External sources cannot be set at the same time for two different channels.

Note: An output delay with 0.25ps resolution can only be configured by telnet command or via the

web page.

Trigger

Output pulse

Channel N° source

amplitude width delay

Figure - 3.

T1 item example

With standard 4 channel unit

The item #10, 11, 12 and 13 will be skipped and will not be displayed.

Item #14 displays a summary of each channel delay reference setting (e.g. for Channel T1: T0 for

absolute reference and T2 to T8 for relative reference). The channel delay reference is set in its

specific setting menu.

Item #15 displays a summary of the channel gate state (‘1’ active and ‘0’ inactive).

Under item #16 we get the following sub-menu allowing users to configure the external trigger:

Comment [JL2]: newer image recommended

Model 745 User Manual